It was believed that documents related to "Haru-no-Odori" which were popular in Osaka Kagai before the Second World War, had been destroyed by the bombing of Osaka in 1945, when Osaka Kagais were burned to the ground. To date concrete studies based on historical documents have not been conducted on this subject, though some books have mentioned this topic. Komajiro Sato, a board member of Kitanoshinchi in the early years of the Showa era, saved and safely preserved many documents related to Kitanoshinchi Naniwa Odori and Hokuyo Enbujo. This study introduces the outline of these documents and examines changes in choreographers and people in charge of music of the Osaka Haru-no-Odori, focusing on Hokuyo Naniwa Odori, based on the documents. Furthermore, characteristics of each Kagai are discussed.